2C-Se

2C-Se is a lesser-known psychedelic drug. It was originally named by Alexander Shulgin as described in his book PiHKAL (Phenethylamines i Have Known And Loved). Shulgin considered 2C-Se to be around three times the potency of mescaline, but was too concerned about toxicity to test it extensively, though he considered it noteworthy as the only psychedelic drug to contain a selenium atom.